Norbergite Vs Covellite
Color
Yellow, White, Brown, Red
Blue, Blue, Black
Streak
White
Grey, Black, gray
For which Rashi?
Not Available
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Planet
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Element of Planets
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Finger
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Ring Metal
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Energy
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Deities
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Not to wear with
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Powers
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Planetary
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Talisman
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Tenacity
Not Available
Flexible
Solubility
Not Available
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Durability
Not Available
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Specific Gravity
3.177
4.6-4.76
Fracture
Uneven, Uneven, ConchoidalAnthony et al, Handbook of mineralogy (2001), Conchoidal, Brittle
Gemstones (2009), UnevenArthur Thomas, Gemstones (2009), Brittle, Metallic
Cleavage
{???} Distinct
Perfect on {0001}
Mohs Hardness
6-6.5
Not Available
Chemical Composition
Mg 3(SiO 4)(F,OH) 2Anthony et al , Handbook of Mineralogy (2001)
CuSMichael OâDonoghue , Gems, Sixth edition (2006) More from other references
Pleochroism
Pale yellow very pale yellow colorlessAnthony et al
Marked
Dispersion
Not Available
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Transparency
Transparent
OpaqueAnthony et al, Handbook of mineralogy (2001) More from other references
Refractive Index
1.563-1.593
1.45-2.62
Optic Character
Not Available
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Crystal System
Not Available
Hexagonal
Birefringence
Not Available
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Clarity
Transparent
OpaqueAnthony et al
Neurological
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Cardiovascular
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Respiratory
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Reproductive
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Digestive
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Psychology
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Healing
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Qualities Associated
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Norbergite Vs Covellite Fracture
Fracture is an important parameter when you compare Norbergite and Covellite Physical Properties. It is necessary to understand the significance of these properties, before you compare Norbergite Vs Covellite fracture. Whenever a gemstone chip breaks, it leaves a characteristic line along its breakage. Such lines are known as fracture and are used to identify the gemstones in their initial stages of production when they are in the form of rough minerals. Fracture is usually described with the terms “fibrous” and “splintery” to denote a fracture that usually leaves elongated and sharp edges. Fracture observed in Norbergite is Brittle, Conchoidal, ConchoidalAnthony et al, Handbook of mineralogy (2001), Uneven and Uneven. Covellite fracture is Brittle, Gemstones (2009), Gemstones (2009), Metallic and UnevenArthur Thomas.
Norbergite Vs Covellite Luster
A primary knowledge about Norbergite vs Covellite luster is useful in apparent identifications of these gemstones. Luster is the measure of light that gets reflected when incident on a finished cut gemstone. There are two major types of lusters: Silky and Adamantine. Since luster varies between two crystals of even the same gemstone, luster is limited to basic identification criteria. Norbergite exhibits Vitreous luster. Covellite, on other hand, exhibits Resinous luster.